Improvement in locks for doors



strat militer.

BENJAMIN r. Bonnets, or tacoNa, Iowa.-

Letters Patent No. 111,005, dated January 17, 1871.

Y IMPROVEMENT iN LOCKS FOR DRS, &c.

The-Schedule referred to these Letters Patent and making part oi' the same.

1b all whom it may concern.-

Be it known that I,V BENJAMIN F. Renners, ot'

Lacona, in the county ot Warren and State of Iowa,

have invented certain newand useful Improvements in Locks; and I do hereby declare the following to be a fiill, clear, and exact description thereof, reference being had to the annexed drawing forming a part of the same, ,aud in which- Fignrel represents a view', taken in a vertical oen- `tral section-through a casing. or chest, to the inner side of which my lock is attached, exhibiting the construction and arrangement ofthe constituent parts of the latter; and

Figuref is a view of the under side of a portion of the top of the said casing or safe, exhibiting adevice, attached thereto, which is used in connection with the lock for assisting in operating it, a key being applied to said device in operating it.

This invention relates to certain improvements in locks, and consists in theemployment of bolts or hars, pivoted at orvnear their centers, and having their outer ends bent' at lright angles to their main i portions, while their inuer ends are made to come in contact with each other, and confined by means of a guide or clip, within which they are allowed to slide back and forth when the outer ends' are thrown in or out, locking or unlocking the door, the said bolts having the desired tension or spring imparted to them by means of flat-spring metal bars, and operated by rod, the lower or looped end of' which being properly held in place and entering guide or clip containing the inner ends ot' the said b ars or bolts, against which it presses when operated, and the 'upper end thereof connected to a right-angular pivoted bar, which is depressed, when it is desired to unlock the door, by means of a semicircular device, arranged and' operatedas hereinafter described.

Similar letters of reference in the several figures of the accompanying drawing indicate corresponding parts of my invention.

'A A represent-two'bars or bolts, pivoted at their centers, or thereabout, to the metal plate A, screwed or'othcrwise secured to the innersidc of easing 0r safe a 2, and having their outer ends, or that portion ot them forming bolts and which enter openings in the door of the said casing for locking it, bentat right anglesgto their main or slightly-curved portions, the inner ends of said bars being made to come in contact with each other, and confined by means of a clip or' guide, a, within which they slide back and forth when the said bars are 0perated.

al al designate two thin metal springs for the bars or bolts A A, against' the inner ends of which their free ends press, their opposite ends -being secured at the point a2 a2 on plate A1 of the casing. rlhese springs c1 al are for the purpose of throwing the boltends of the bars A A out, so as to cause said bolts to enter the receptacles or openings made in the'door for their reception.

c a3 are clips or staples, embracing or retaining in place the bars A A, at or near the point where they are bent at right angles, and of suflicient size to allow the said bars to have the necessary lateral move-- ment when operated.

Bis a vertical rod, held in place on the plate Al by means of the elongated staples b b, and formed at its lower end with the triangulanshapcd loop b', the inclined portion of Vwhich being made te come in contact with the staple or clip ai, through which it passes while being operated or raised and lowered. Y

The upper end ot' the said rod `is loosely attached to one end of a pivoted transverse bar, C.

It will be not-iced that, when the rod Bis raised, the inclined portion of its loop will come in contact with the staple c, embracing and within which slide the inner ends of' bars A, having shoulders at a4, and cause the said rod,' as it ascends, to have a side or lateral movement, consequently imparting a similar motion to the bars A, it being so arranged in relation to the said bars as to strike against the shoulders c* c4 thereof when operated, as will be seen from the foregoing, thereby causing the inner portions of the said bars "to be thrown ont or against the stapleaf, and their cuter ends or'bolts in, relievingr the latter from the door and allowing it to swing open, or be opened without further trouble.

rlhe metal bar C, above alluded to, is. reduced at its free end, and Venters a staple or clip, c, secured to the casing or safe AZ.

D is a semicircnlar-shaped metal plate, sliding in metal clips or staples secured to the under side ofthe top of the casing A, as seen in iig. 2.

Oneend of the said plate D is designed to rest on the reduced end of the bar C, so that, whrn it is-,depressed by the lkey or crank E, it will depress the said bar, and it, in turn, elevate the rod B, which will, as above stated, perform the operation of unlocking the door.

The crank or key E is inserted in the opening e, in dieat-ed in dotted lines in the topv ofthe easing.

When it is desired to lock the safe, all that is necessary is to merely close the door thereof, Withdraw the semicircnlar plate D, when the safe is locked, and access to the lock will be entirely cnt ci?, the key or crank-hole being located some distance from the point of Contact with the unlocking-bar C of the lock; hence it will bc seen that, without the binor plate D, the lock cannot be operated upon.

, Having thus described my invention,

What I clnim,zu1d desire to secure by Letters Patent, is-

1. The pivoted 4bars or bolts A A, staples c a3 a, springs .1 al, vertically and laterally-sliding;l connectin g-rod B b', staples b b, and pivoted transverse bar O, constructed :md arranged to operate substantially c as shown, and for the purpose specified.

2. In combination with the above-enumerated parts, the circular plate D and crunk or key E, substantially :is shown and described.

In testimony that I claim the foregoing `I have hereunto set my hand this Sth day of November7 1870, in the presence of two subscribing witnesses.

' BENJAMIN ROBERTS.

Witnesses: Y

WILLIAM P. LEE, E. A. SMITH.- 

